Bicycle attachment



(No Model.)

F. P. BURST.

BICYCLE ATTACHMENT.

No. 597,287. Patented Jan. 11,1898.

WITNESSES INVENTUH A TTOHNE YS.

UNITED STATES PATENT rricn.

FRED PETER HURST, OF AURORA, OREGON.

BlCYCLE ATTACH M ENT.

SPECIFICATION forming part of Letters Patent 0. 597,287, dated January11, 1898.

Application filed April 3, 1897. Serial No. 680,512. (No model.)

To all whom it may concern.-

Be it known that I, FRED PETER HURST, of Aurora, in the county of Marionand State of Oregon, have invented a new and Improved BicycleAttachment, of which the following is a full, clear, and exactdescription.

This invention is an attachment for bicycles by which the bicycles maybe made to run on the rails of a railway-track, and the apparatus isparticularly characterized by such construction as enables the machineto run on a single rail without outrunning supporting devices.

This specification is the disclosure of one form of my invention, whilethe claims define the actual scope of the conception.

Reference is to be had to the accompanying drawings, forming a part ofthis specification, in which similar characters of reference indicatecorresponding parts in all the figures.

Figure 1 is a side elevation of the invention. Fig. 2 is a plan viewthereof. Fig. 3 is a sectional view showing means for preventing thesteering-fork from turning. Fig. 4 is a fragmentary side elevation ofone of the guides. Fig. 5 is a front elevation of a pair of guides withparts in section. Fig. 6 is a sectional plan view of the constructionshown in Fig. 3. Fig. 7 is a sectional plan view of one of the clips forattaching the guides to the frame. Fig. 8 is a sectional v view of oneof the arms which carry the guiderollers, and Fig. 9 is a sectional viewof one of the guide-rollers.

The machine is provided with two pairs of guides, respectively locatedat the frontand rear of the machine. The guide device at the front ofthe machine consists of two rods 10, run parallel with each other andrigidly joined by slotted plates 11, with fastening-bolts 12 in theirslots. The upper end of each rod is attached rigidly to a lip 13, rigidon one of the two sections of the respective clips 14:. Each clip 1%consists of two pivoted sections and of a thumb-screw 15, by which thesections are drawn together. The clips 14 are respectively bound againstthe arms 16 of the steering-fork. By these means the arms 10 are rigidlyattached to the steering-fork of the bicycle. The arms 10 projectforwardly and downwardly from the steering-fork to a point slightlyabove the line in which the lower portions of the wheels of the bicycleare located. Y

Each arm 10 is turned down at its lower end and provided with a cavity17. Pi voted within the cavities 17, by means of bolts 18, are therespective arms 19. The arms 19 have disk-shaped upper ends, each formedwith an arc-shaped slot 20. The slots 20 respectively contain spiralsprings 21, bearing against blocks 22, held rigidly with the arms 10 byremovable pins 23. The springs 2]., bearing against the blocks 22, serveto hold the arms normally in the positions shown in full lines in thedrawings. The pins 23 are removable, and, if desired, they may bewithdrawn from the blocks 22 and respectively passed through openings24: in the upper ends of the arms 19. This will hold the arms raised andpermit the bicycle to be run on the ground. The lower end of each arm 19has an enlargement 25. Each enlargement 25 has a cavity in which theantifriction-rollers 26 are respectively mounted. The plates 11,permitting the adjustment of the arms 10 toward and from eachother,allow the rollers 26 to be adjusted in engagement with the oppositesides of the head of the rail, as shown in the drawings.

The guide devices at the rear of the bicycle consist in two rods 27,respectively joined to the backstays of the bicycle by clips 28, similarto the clips 14. The lower ends of the rods 27 are adj ustably andrigidly connected with each other by plates 33, similar in constructionto the plates 11, but arranged on p the under sides of the rods. Therods 27 pro; ject downwardly and rearwardly and have their lowerextremities turned horizontally and rearwardly to respectively carryarms 29, similar to the arms 19, and having rollers bearing against therail. By these means the bicycle is braced both at the front and rearand is held to run evenly on the rail.

It is necessary to prevent the front wheel from turning in thesteeringhead while the invention is being used. This I accomplish by acasing 30, consisting of two hinged members clamped-against thesteering-head by a bolt 31. The lower edge of each member of the casing30 is provided with a notch 32. The notches 32 respectively engage theupper portions of the arms of the steering-fork 16, whereby to lock thesteering-fork rigidly with the steering-head. This insures the effectiveoperation of the invention.

In using the invention the parts are as sembled, as shown in. thedrawings, so that the guide-Wheels will run against opposite sides ofthe rail, and as the machine is propelled forward it will run trulyalong the base of the rail. The springs 21 hold the arms 19 in operativepositions and permit the arms to swing rearward should an obstruction been'- gaged.

Having thus described my invention, I claim as new and desire to secureby Letters Patent 1. A bicycle attachment consisting of two clips, tworods respectively attached to the clips, means for rigidly connectingthe rods with each other, an arm carried on each rod, and a rollercarried by each arm.

2. A bicycle attachment having two clips, a rod fixed to each clip,means rigidly connecting the rods with each other, and an arm carried oneach rod.

3. A bicycle attachment consisting of two clips, a rod fixed to eachclip, means rigidly connecting the rods with each other, an arm pivotedto each rod, and a spring for each arm, the springs holding the arm innormal positions.

4. The combination of a rod provided with a cavity, an arm pivoted inthe cavity in the rod, said arm also having a cavity, a spring withinthecavity inthc arm, and a block held rigidly by the rod and fittingwithin the cavity of the arm.

5. The combination of two rods, a clip for each rod, a plate fixed toeach rod, means for adjustably drawing the plates toward each other,andrail-engagin g devices carried by the rods.

6. The combination of a clip having two sections pivotally connected toeach other, one section having a lip run transverse to the plane of saidsection, and a rod fixedly car ried by-said lip.

7. The combination of a rod having a cavity, an arm having a disk-likeend pivoted within the cavity,the disk-like end of the arm having acurved slot, a spring within the slot, and a member carried rigidly bythe rod.

8. A bicycle attachment having a clip form ed of two pivoted sectionswith means for holding them rigidly against the steeringhead of thebicycle, each section havinga recess respectively receiving the arms ofthe steering-fork whereby to hold the steeringfork rigid.

FRED PETER HURST.

WVitnesses:

GEO. W. FRY, HENRY A. SNYDER.

